Abstract: Described herein is a method for reducing noise in a driveline of a motor vehicle, the method including detecting a condition initiating a noise event of the driveline by using one or more sensors on board the vehicle; and controlling, as a function of the detected condition and of a signal of said one or more sensors, an actuation of one or more actuators that govern corresponding devices that can be connected to the driveline and configured for generating a torsional pre-load condition in the driveline itself.

Abstract: Described herein is a method for reducing noise in a driveline of a motor vehicle, the method including detecting a condition initiating a noise event of the driveline by using one or more sensors on board the vehicle; and controlling, as a function of the detected condition and of a signal of said one or more sensors, an actuation of one or more actuators that govern corresponding devices that can be connected to the driveline and configured for generating a torsional pre-load condition in the driveline itself.

Abstract: A powertrain control system for management and supervision of engine and servo-assisted gearbox control modules is arranged for determining the power to be applied to the drive wheels of the vehicle as a function of signals indicative of commands imparted by the driver, of the engine and gearbox state parameters and of possible requirements from the engine and gearbox control modules and supplementary on board vehicle traction/drive control systems; calculating data indicative of the torque to be delivered at the engine drive shaft, the torque transmissible by the clutch and the required transmission ratio, as a function of the determined value of the power to be applied to the drive wheels, of the state parameters and of the requirements of the engine and gearbox control modules and the traction/drive control systems; and transmitting the calculated data as signals to the engine and gearbox control modules.

Abstract: A powertrain control system is described for a motor vehicle provided with at least one engine and a gearbox of servo-assisted type, connectable to the drive shaft of the engine (ICE) via at least one servo-controlled clutch, to which are associated respective control modules arranged to perform an automatic control procedure for control of the traction as a function of signals or data indicative of commands imparted by a motor vehicle driver, and predetermined state parameters of the engine and the gearbox; the system including a module for management and supervision of the said control modules, arranged to manage the powertrain of the vehicle, and in particular to: determine in a predetermined manner, the power to be applied to the drive wheels of the vehicle as a function of signals or data indicative of commands imparted by the driver, of state parameters and of possible requirements from the control modules and/or supplementary on board vehicle traction/drive control systems; calculate, as a function of

Abstract: A direct injection Diesel engine for motor-vehicles, with small displacement, is described, which comprises a number of cylinders in line each provided with two intake valves and two exhaust valves driven by two cam-shafts arranged in the cylinder head, by means of rocker arms. The arrangement of the intake apertures (2, 3) and the exhaust apertures (4, 5) is such that the injector device can be housed centrally therebetween and the pre-heating glow-plug can be housed on one side, between one intake aperture and one exhaust aperture, while the overall dimensions of the engine are greatly reduced and intake and exhaust conduits (6, 7, 8) are formed which ensure optimum performance of the engine and a low fuel consumption.

Abstract: In a Diesel engine with variably actuated valves, the cam controlling each inlet valve is shaped to provoke the opening of the respective inlet valve during the engine's normal exhaust phase and thus realize exhaust gas recirculation within the engine, due to the fact that during the normal exhaust phase, part of the exhaust gas passes from the cylinder into the inlet port, from where it returns to the cylinder during the next induction phase, while part of the exhaust gas that had previously passed into the exhaust port returns to the cylinder during the induction phase due to the additional opening of the exhaust valve, in consequence of which the exhaust gas charges that return to the cylinder are subjected to further combustion in the next engine cycle.